From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44796) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gCMI9-0002v7-53 for qemu-devel@nongnu.org; Tue, 16 Oct 2018 06:09:34 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gCMI6-0006IK-8c for qemu-devel@nongnu.org; Tue, 16 Oct 2018 06:09:32 -0400 Received: from mx1.redhat.com ([209.132.183.28]:52808) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gCMI5-00061R-3M for qemu-devel@nongnu.org; Tue, 16 Oct 2018 06:09:29 -0400 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= Date: Tue, 16 Oct 2018 11:09:10 +0100 Message-Id: <20181016100918.21030-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: [Qemu-devel] [PATCH v2 0/8] crypto: improve performance of XTS cipher mode List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Alberto Garcia v1: https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg01601.html The XTS cipher mode is significantly slower than CBC mode. This series approximately doubles the XTS performance which will improve the I/O rate for LUKS disks. Changed in v2: - Use union for xts_uint128 to allow bytewise access without casts - Use byteswapping for endian correct bit gf128 shifting - Optimize for aligned buffers, with fallback for unaligned buffers - Add tests for unaligned buffer usage Daniel P. Berrang=C3=A9 (8): crypto: expand algorithm coverage for cipher benchmark crypto: remove code duplication in tweak encrypt/decrypt crypto: introduce a xts_uint128 data type crypto: convert xts_tweak_encdec to use xts_uint128 type crypto: convert xts_mult_x to use xts_uint128 type crypto: annotate xts_tweak_encdec as inlineable crypto: refactor XTS cipher mode test suite crypto: add testing for unaligned buffers with XTS cipher mode crypto/xts.c | 199 +++++++++++++++------------- tests/benchmark-crypto-cipher.c | 149 +++++++++++++++++---- tests/test-crypto-xts.c | 226 +++++++++++++++++++++++--------- 3 files changed, 401 insertions(+), 173 deletions(-) --=20 2.17.2